Any ideas on a birthday gift?

It is my boyfriends birthday a week on Saturday. I have already got him tickets for something ( which unfortunately he knows about). I have also booked us a room for the night ( which he doesn’t know about).
I want to get him something for him to open on the day, but have no idea what, but I would feel mean if he didn’t have anything to unwrap. (He already gets to unwrap me, ucme).